Overweight children are less accurate in estimating their own body size. And the bigger their body is, the more inaccurate their guesses.

The report estimates that there will be 1,735,350 new cancer cases and 609,640 cancer deaths in the United States in 2018*. The cancer death rate dropped 26% from its peak of 215.1 per 100,000 population in 1991 to 158.6 per 100,000 in 2015. A significant proportion of the drop is due to steady reductions in smoking and advances in early detection and treatment. The overall decline is driven by decreasing death rates for the four major cancer sites: Lung (declined 45% from 1990 to 2015 among men and 19% from 2002 to 2015 among women); female breast (down 39% from 1989 to 2015), prostate (down 52% from 1993 to 2015), and colorectal (down 52% from 1970 to 2015).

Children commonly show signs of a mental disorder soon after receiving a diagnosis involving a chronic physical condition, according to a recent study in BMJ Open.

For the more than 1 million Americans who live with type 1 diabetes, daily insulin injections are literally a matter of life and death. And while there is no cure, a Cornell-led research team has developed a device that could revolutionize management of the disease.

For decades, chemical pesticides have been the most important way of controlling insects like the Anopheles mosquito species that spreads malaria to humans. Unfortunately, the bugs have fought back, evolving genetic shields to protect themselves and their offspring from future attacks.

Cookstoves are a central part of millions of homes throughout Asia: families often use readily available and cheap biofuels — such as crop chaff or dung — to prepare the food needed to survive.

Got a sore throat? The doctor may write a quick prescription for penicillin or amoxicillin, and with the stroke of a pen, help diminish public health and your own future health by helping bacteria evolve resistance to antibiotics.

Short-term exposures to fine particulate air pollution and ozone—even at levels well below current national safety standards—were linked to higher risk of premature death among the elderly in the U.S. according to a new study from Harvard T.H. Chan School of Public Health.

The risk was even higher among elderly who were low-income, female, or Black.

The study was published December 26, 2017 in the Journal of the American Medical Association (JAMA).

People with colorectal cancer (CRC) who drank at least four cups of coffee per day after their diagnosis had a significantly lower risk of early death—from either their cancer or any cause—than those who didn’t drink coffee, according to a new study from Harvard T.H. Chan School of Public Health.

The Low Emission Zone in Leipzig was established in March 2011, allowing only access of Diesel vehicles of Euro4 and higher with few exceptions. The ban of older vehicles and subsequent modernization of the car fleet resulted in slightly reduced PM10 and PM2.5 mass concentrations. However, the mass concentration of black carbon (soot particles) emitted mainly from Diesel vehicles decreased by 60% at the street site. These particles are believed to be most dangerous due to their carcinogenic trace compounds such as polycyclic aromatic hydrocarbons. Furthermore, also the number concentration of ultrafine particles, which can penetrate deep into the lungs, decreased by approximately 70%. Despite modernized Diesel vehicles, nitrogen oxides concentrations did not follow these trends and remained nearly constant. The main achievement of the Low Emission Zone was the improvement of air quality by the reduction of the most dangerous particles.